Rotating-cylinder engine



(No Model.) 2y Sheets-Sheet 1` s.' G. BROSIUS. ROI'ATING GYLINDER ENGINE.

No. 492,861. Patented Mar.V 7, 1893.

@9H/naw@ m: nnms Patins co., uom-uma. WASHINGTON, n. c.

(No Model.)` 2 Sheets-Sheet 2.

S. G. BROSIUS. EOTATING GYLINDEE ENGINE.

No. 492,861. Patented Mar. '7, 1893.

SAMUEL GLENVILLE BROSIUS, OF SAVANNAH, GEORGIA.

ROTATING-CYLINDER ENGINE.

SPECIFICATION forming part of Letters Patent No. 492,861, dated March 7, 1893.

Application filed December 1, 1892.

T0 @ZZ whom it may concern.-

Be it known that I, SAMUEL GLENVILLE BROSIUS, a citizen of the United States, residing at Savannah, in the county of Chatham and State of Georgia, have invented certain new and useful Improvements in Rotating- Cylinder Engines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in rotating cylinder engines of the class shown in my applications tiled in United States Patent Oice July 30, 1891, and April 17, 1892, Serial Nos. 401,208 and 418,721, respectively.

The object of my invention is to make a powerful and compact machine which can be reversed and to remove the working parts from the heat and action of steam pressure and impart a smooth and positive movement to the pistons.

In the drawings, Figure 1 iscentral longitudinal cross section of the engine, showing the interior of the cylinder, steam chest and working parts. Fig. 2 is a central cross section of the engine through the cylinder and steam chest. Fig. 3 is an end view of the engine showing the cylinder and the compound eccentrics, the rear pillow block being removed. Figs. 4 and 5 are respectively cen'- tral cross section and longitudinal cross section and elevation of the piston. Figs. 6, 7, and 8 are respectively end, side and plan views of the outer packing strips. Figs. 9 and 10 are respectively end and side views of the inner packing strips. Figs. 11 and 12 are respectively end and side views of the end packing strips. Figs. 13 and 14 are each respectively cross section and elevation of the end and front views of the abutment. Figs. 15 and 16 are the elevation and plan views of the valve connecting rod hook.

Like letters of reference refer to like parts throughout the several views.

The driving shaft Nis mounted in pillow blocks K, K', which are secured to base plate W and is firmly attached in the hub of rotating cylinder C by which it is driven. The cylinder is provided with the pistons A and B whicharemounted by their respective shafts As A4, B3 B4, in suitable journal boxes con- Serial No. 453,768- (No model.)

tained in cylinder heads C3 which are secured to cylinder C as shown in Figs. 1 and 3; said cylinder C is made in parts and is joined at C9 and securely boltedA together by the screws C8. The joint in the cylinder is so located that the piston chambers C4 may be readily finished inside and for convenience of assembling and repairing.

The abutment disk D hasa central disk D2 which is provided with flanges D against which the packing rings d of the inner cylinder rings C pack. The abutment I is secured to said central disk D2 which is provided with passages y. Said disk D is attached to Vthe pillow block K and contains steam chest T which is provided with the cut-off valve T which controls the inlet and exhaust passages ac 'y' respectively, through the ports and y in said valve T. The steam enters through pipe x into steam chest T and passes through the valve T into the steam chamber T2 of valve T and out through its inlet port c into the cylinder through passage 0c', the exhaust steam passing through passage y', exhaust port t, and exhaust passage t', into exhaust chamber 153, and thence escaping through exhaust pipe t4, as shown in Figs. l and 2.

The valve T is controlled by valve rod R which is mounted in the journal boxes R4, and at its end is provided with double crank S3, S6 and handle bar R3 as shown in Fig. 15; the said double crank is controlled by the valve rod connecting hook S, S', S2 which is driven by the crank disk or eccentric Z, and has the journal S4, and as shown in Fig. 16, said hook is held inA place by the slide S8 which moves in a suitable groove and is provided with a slot. S7 which slides over pin S5 which holds said slide in position; said slide is also provided with a projection or handle to facilitate its'operation. Todisconnect said hook from crank S3 the slide S8 is pulled out and the hook raised from the wrist pin. To reverse the engine, the crank S6 of the double crank is thrown over by its handle bar R3 and is engaged by said connecting rod hook S4, the steam and exhaust passages x' and y being thereby reversed; that is, valve T is thrown around until its port y opens across passage y which then becomes steam passage, and exhaust port t of valve T connects passage IOO e Y l A 492,561

0c with passage t which then becomes exhaust passage.

The abutment I as before described is attached to central disk D2 which ts in groove l', and it has steam passage ways and is also provided with the outer packing strips P, lthe end packing strips P2 and the inner packing strips P2; the said abutmentis formed to the curves which allow the piston free passage and at the same time reduce the steam clearance to a minimum. The outer packing strips P, on their vpacking surface r', conform to the curve of the cylinder and have the lugs fr which span, in passing, the opening of C7 in said cylinder. Said packing also has the holes r2 through which steam may be admitted to the under side to press them out.. The inner packing strips P2 are curved at J to conform t0 the curve of the inner cylinder ring C', and span, in passing, the opening of A7.

The end packing strips P2 conform tothe end surfaces of the cylinder and are provided with lug C which rests between packing strips P and P2 so that packing strips P2 will not go past the bearing surfaces of said packings, but will not prevent them from separating and having full contact with the inner periphery of the cylinder.

The various packing strips above described are held in contact with the steam surfaces of the cylinder by steam pressure, springs or both. Y

As shown in Fig. 5, the piston is constructed with end disks A,.cut yaway at A6 to prevent uneven wear of the packing strips P. Said disks A have in their peripheries packing rings p4 which pack them in suitable piston seats and are connected by the wing A which has the recesses A2 and is provided with the packing p2 in its face which lits over the cen tral disk D2 and its flanges D', packing the same steam tight. Said wing A in passing' abutment I drops back into the piston chamber C7 of the outer cylinder ring C2 of said rotating cylinder, said piston chamber C2, and is provided with piston packing strips p, and is covered by tongue C5 which is strengthened by rib C4 over which the recesses A2 of the piston pass; said ribs C4 also narrow the opening of C7 thereby allowing the lugs r of packing stripsP to be shortened as will be readily seen. The inner cylinder ring C is provided with the piston chambers A7 which receive lthe edges ofy said pistons which are packed by the packing strips P.l

In' Figs. l and 3, referring now to piston'A, the shaft A4 is provided with crank A5 which is connected to lever E by link e through its journals e e2. The lever E is provided with journal pin E to which is attached the eccentric rod a2 which is secured to eccentric yoke a and is operated by eccentric a which is journaled and oscillates on shaft N and is controlled by connecting rod a4 through its crank d5 by journal a2, in which it moves. The connecting rod a4 is connected by journal pin a2 to crank H which is securely attached to rocker shaft .H which is journaled in boxes h h secured t-o base pillow block K and is provided with crank H2 which is controlled by eccentric yoke and rod L L2 which is oper-` ated by eccentric L secured to shaft N and rotates with it. The said eccentric L may be placed outside of pillow block K. The eccentric a controllingthrough its co-operatingparts the piston, gives an intermittent motion to it; during half the revolution when the piston is under pressure and driving the rotating cylinder, it is substantially at rest, and through the balance of the revolution it is oscillating or moving back into and out of the piston chamber C7 in passing abutment T of the rotating cylinder. This said intermittent motion is accomplished by the oscillation of the eccentric a about the shaft N, when the movement is in direction of rotation of said shaft N, there is 'substantially a rest, but when the movement is against it, the eccentric a acts and thereby causes a throw, the

,oscillations of said eccentric a are controlled by the eccentric L through the connections before described and said motion is fully described, shown and claimed in my application Serial No. 456,734; said lever vE in conjunction with crank A5 and their connecting link e form a toggle joint, so that when the piston is in position to receive pressure and is held against central disk D2, the toggle joint is in a straight line and no friction resulting from holding same in place when the piston is stationary with regard to the rotating cylinder will come on workingA parts. The eccentric h is journaled and oscillates on sleeve et of eccentric a; with this exception, the construction of eccentric b and the operation of piston B is identical with that of piston A and eccentric a in its construction and its operations by means of yoke b b2, journal pinF, lever F connecting rod fY and its journals f-f2 and its crank B5- and shaft B4. The eccentric b is controlled through crank I-I by connecting rod latin the same manner aseccentric a. The eccentricsa and b are the work-ing eccentrics and are driven by the driving eccentrics L through-their connections as described. The connecting vrods c4 b4 are curved in a suitable manner to avoid contact with shaft N. The steam acting on and between abutment L and the `pistons A and B rotate the cylinder C when they are at rest with regard to it; one 4piston is under pressure while the other piston is oscillating into the piston chamber C7 of cylinder O- so as to pass the abutment I and after passing takes its position 'to receive steam pressure. The steam in its inlet is controlled by valve T and may be cut off at any required point in the stroke; the exhaust being always free to escape. To reverse the engine, theexhaust passage is made to become the linlet passage and the inlet passage to become the exhaust as heretofore described. f l' i I have shown an eccentric as the means for driving the working eccentrics, but it will be IOO IIO

IZO

492,861 y Y 3 i understood thatit need notbe such a construction but niay be a crank, Wrist pin or any equivalent device.

` I do not confine myself to this identical construction, as any mechanical equivalent maybe used Without departing from the spirit of my invention.

What I claim as new, and desire to secure by Letters Patent, is-

l. In an engine, an abutment, oscillating pistons and a rotating cylinder having tongues forming piston chambers in the inner periphery of the cylinder into which said pistons move in passing said abutment, substantially as described and set forth. v

2. In an engine, an abutment, oscillating pistons provided withl recesses and a rotating cylinder having tongues forming piston chambers in the inner periphery of the cylinder into which said pistons move in passing said abutment; said tongues having ribs adapted to move freely through the said recesses of the pistons Without contact, substantially as described and set forth.

3. In an engine, an abutment provided With packing strips having lugs, oscillatin g pistons provided with recesses and a rotating cylinder having tongues forming piston chambers in the inner periphery of the cylinder into which said pistons move in passing said abutment; said tongues having ribs over which the recesses of said pistons move freely Without contact, said ribs narrowing the opening of said piston chambers, thereby shortening the lugs of said packing strips, substantially as described and set forth.

4. In an engine, an abutment,provided with packing strips, pistons and a rotating cylinder having tongues forming piston chambers in the inner periphery of the cylinder into which said pistons move in passing said abutments, said packing strips being provided with lugs which span the openings of said piston chambers in passing the same, substantially as described and set forth.

5. In an engine, an abutment, provided With packing strips, pistons and a rotating cylinder having tongues forming piston chambers in the inner periphery of the cylinder into which said pistons movein passing said abutments, said packing stripsbeing provided with lugs which span the openings of said piston chambers in passing the same, and provided with holes through which the steam passes to keep said strips in contact with the inner periphery of said cylinder, substantially as described and set forth.

6. In an engine, a rotating cylinder, pistons, and an abutment provided With inner, end and outer packing strips, said end packing strips having lugs securely attached to them and bearing against the inside edges of said inner and outer packing strips, thereby preventing the ends of said packing strips from protruding by the packing surfaces,

but allowing the inner and outer packing strips to separate, substantially as described and set forth.

7. In an engine, an abutment, oscillating pistons, a rotating cylinder having piston chambers into which said pistons move, said vabutment having packing strips which span .tact with the inner periphery of said cylinder, substantially as and for the purpose described.

9. In an engine` in combination, an abut-Y ment, pistons, a rotating cylinder' having tongues forming piston chambers in the outer cylinder ring into which said pistons move, said cylinder having its saidv outer cylinder ring divided at the internal limitof the pis` o ton chambers and securely bolted together, n

substantially as described and set forth.

lO. In an engine, having a rotating cylinder, an abutment, pistons, an abutment disk provided With a steam chest having an oscillating valve, provided with separate steam and exhaust chambers running parallel to the axis of the valve and steam and exhaust ports; from same leading into corresponding passages inthe said abutment disk and adapted to be reversed, substantially as described and set forth.

ll. In an engine, having a rotating cylinder, an abutment, pistons, an abutment disk provided With a steam chest and having an oscillating valve controlled -by a double crank which is operated by a connecting rodhook, for the purpose set forth, substantially as described and set fort-h. v

l2. In an engine, having a rotating cylinder, an abutment, pistons, a cut-off valve, provided With a crank having a Wrist pin oper- IOO IIO

atedrby a connecting rod hook which has a slide provided With a projecting handle, and holding said hook normallyinposition on said Wrist pin, substantially as described Vand set forth.

13. In an engine, a rotating cylinder, an abutment, aout-off valve in combination With pistons controlled by crank levers operated by Working and driving eccentrics, substantially as described and set forth.

14:. In an engine, a rotating.' cylinderhaving an'abutment, pistons provided With cranks in combination with a toggle-joint, operated' by driving and working eccentrics, substan# tially as described and set forth.

15. In an engine, yin combination with a r0- tating cylinder, a pillow block, an abutment, pistons controlled by working and driving eccentrics, located on opposite sides of the pillow block and connected by a rockershaft, substantially as described and set forth.

16. In an engine, in combination with a rotating cylinder, a pillow block, an abutment, piston controlled by a toggle joint operated by Working and driving ec'centrics, located on opposite sides of the pillow block and connected by a rocker shaft, substantially as describedand set forth.

17. In an engine, an abutment, oscillating pistons and a rotating cylinder formed by inner and outer cylinder rings and heads and having tonguesy forming piston chambers in the outer cylinder ring into which said pistons move in passing saidy abutment and piston chambers in the inner cylinder ring in which the'edges of said pistons are adapted to rest when said pistons are under pressure and driving'said cylinder. y

18. In anA engine an abutment, oscillating pistonsand a rotating cylinder formed by inner and outer rings and having tonguesA forming piston chambers in the inner periphery of the outer ring of the said cylinder, into ,which chambers the said'p'istons move in passing saidy abutment, substantially as described. A c y 19. In an engine in combination, an abutment,ia rotating cylinder, a driving shaft, a drivingv eccentric operated by said shaft, Working eccentrics one oflwhich oscillates on the saiddriving shaft andhas mounted upon its sleeve the otherfworking eccentric, which oscillate thereon pistons controlled by said Working eccentri'cs and connections between the driving eccentric and the working eccen- 4 teaser vtries whereby thesaid driving eccentric controls the operations ofA the working eccentrics and regulates the operations of the pistons, substantially as described.

20. In an engine an abutment, oscillating pistons, a rotating cylinder having inner and outer cylinder rings and connected heads, and having tongues forming piston chambers in the inner periphery of the said cylinder, said pistons being mounted in said heads and moving in said piston chambers in passing said abutment, substantially as set forth.

2l. lIn an'engine an abutment, an abutment disk, oscillating pistons, packings and a rotating cylinder formed by inner' and outer cylinder rings and provided with pistonchambers in the outer ring formed by tongues and into which chambersthe said pistons move, saidpackings fitting around'the vface of the lsaid abutment disk during the oscillations of the pistons, substantially as described. l

22. In an engine, a rotating cyli'nderrprovvided with piston chambers, pistonsk which move therein, an abutment'mounted on an abutment disk, cranks, levers, toggle joint, and Working and driving eccentrics,`said pistons being operated by said eccentrics th rough said cranks, levers and toggle joint, substantially as set forth. l

23. In an engine, a central abutmentjdisk, an abutment mounted thereon, oscillating pistons and a rotating cylinder having tongues forming piston chambers in said cylinder into vwhich'said pistons move in passing said abutnient, substantially as described and set forth. In testimony whereof I affix my signature in presence of two witnesses.

SAMUEL GL'ENVILLE BROSIUS.

Witnesses:

DANIEL FRASER, P. L. WEBB. 

